[pan] header-pane.cc: avoid mojibake in Subject

[Dominique Dumont <ddumont src gnome org>]

commit 7357c50b448cb36d1be94a6235afc12a59564e84
Author: Dominique Dumont <dod debian org>
Date:   Sun Nov 14 18:53:37 2021 +0100

    header-pane.cc: avoid mojibake in Subject
    
    There's no need to mess with the encoding of the subject. gmime is able
    to decode as needed.

 pan/gui/header-pane.cc | 5 +----
 1 file changed, 1 insertion(+), 4 deletions(-)
---
diff --git a/pan/gui/header-pane.cc b/pan/gui/header-pane.cc
index 22718d3..11e13d8 100644
--- a/pan/gui/header-pane.cc
+++ b/pan/gui/header-pane.cc
@@ -369,10 +369,7 @@ HeaderPane :: render_subject (GtkTreeViewColumn * ,
 
   const Article * a (self->get_article (model, iter));
 
-  char* ret = __g_mime_iconv_strdup(conv, a->subject.c_str());
-  std::string res;
-  if (ret) res = ret;
-  g_free(ret);
+  std::string res = a->subject.c_str();
 
   char buf[512];